>>> white house now facing more fallout from the terrorist attack in benghazi, libya. here are the latest developments. the republican congressman darrell issa says he has subpoenaed the secretary of state kerry to testify on the benghazi attack at a may 21st hearing. issa has led the house oversight committee investigation. now a source telling our own dana bash that house republican leaders have decided to form what's called a select committee to investigate benghazi. the latest fallout stems from white house documents just disclosed this week. for more on the benghazi fallout, let's bring our chief political analyst gloria borger. the benghazi issue didn't come up at the news conference the president just had. but it is clearly not going away. republicans, especially in the house, are trying to escalate the matter. >> because they think it's a good political peg for them to use against an administration they would say is secretive and tried to cover up what really occurred in benghazi. you've heard the white house defense on this, wolf. they've said this e-mail that